Window stop



May 22, 1923.

1,. FRY

v WINDOW STOP Filed Feb. 9, 1922 Patented May 22, 1923,

UNITED STATES LESLIE FRY, or nus Mo-InEs, Iowa.

WINDOW s'ror.

Application filed February 9, 1922. Serial No; 535,215.

To all whom it may concernr: 7

Be it known that I, LESLIE'FRY, a citizen of the United States, and a residentof Des Moines, in the county of Polk and State of Iowa, have invented a certain new and useful Vindow Stop, of which the following is aspecification.

The object of my invention is to provide a window stop device designed to be used for limiting the amount of movement of the upper and lower Window sashes relative to each other, the parts being of simple, durable and comparatively inexpensive construction.

More particularly, my invention relates to a device adapted to be used for limiting the amount of movement of the window sashes relative to each other, the parts being so designed that it is necessary to first have the upper and lower window sashes in their proper closed positions before it is possible to manipulate the stop devices.

Still another object is to provide a stop device so arranged that when it is in one of its positions, it will remain in that position by gravity, and when swung to another of its positions,it will remain in that position by gravity.

With these and other objects in view, my invention consists in the construction, arrangemen't and combination of the various parts of my device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which I Figure 1 isa perspective view of a portion of a window frame and window sashes with my improved stop device shown thereon.

Figure 2 is a sectional view taken through one of the window sashes and my device.

, Figure 3 is a perspective'view of my window stop.

Figure at is a sectional viewtaken on line of Figure 2.

Figure 5 is a slightly modified form of my invention, wherein the swinging memher is mounted ona vertical axis. 7 v

Figure 6 is a sectional view taken on line 6-6 of Figure 5, and

I Figure 7'is a perspective view of a portion of the modified form of device.

In the accompanying drawings, I have used the reference numeral 10 to indicate; generally a Window frame, which is provided witha window casing 11, and the ordinary divided strip 12 is received in a groove formed in the window frame 10.

Slidably received between the divider strip 12 and the window casing 11 is the lower window sash 13. The window sash 13 is provided with a glass 14. An upper window sash 15 is slidably mounted within the window frame 10 in the ordinary man'- ner, and is provided with a glass 16;

The parts just described ar of ordinary screws 20 fo securely fastening the plate 17 to the upper window sash 15. r

A pintle rod'21 is extended, throughthe plate and extends across the slot 18 midway between its upper and lower edges. Rotatably mounted on the pintle rod 21 is the stop 22, which is formed with an outwardly projecting head.

r A finger 23 is formed on'the stop 22 and the entire stop and finger is permitted to swing on the pintle rod 21.

, When the finger 23 is suspended downwardly, it is received in the lower half of the slot 18 in the plate 17 and when the finger 23 is swung to its upper position or inoperative position, the finger 23 is received in the upperhalf of the slot 18. Adjacent to the pintle rod groove 01'" recess 24 in the window sash 15'. The stop 22 when the finger 23 is receivedin the lower half of the slot,-projects inwardly from the" window sash 15 and intothe path of movement of the lower window sash: 13, In thisconnection, it may be mentioned that when the lower window is raised and' 21,1 form a,

the stop 22 is in the position shown in Figure 4 of the drawings, it will strike against the upper edge of the window sash 13 and limit its upward movement, or it will limit the amount of downward movement of the upper window sash 15.

From the construction of the parts just described, it will be seen that when the stop is in the position shown in Figure 4 of the drawings, it will limit the amount of movement for opening the windows.

The stop device is usually so arranged that the window may be opened a few inches only, thereby eliminating the possibility of anyone coming in through the windows for trespassing on other peoples property.

, It will be seen that when the stop 22 is in operative position, the finger 23 will be re- 1 ceived between the outer side of the window sash 13. and the inner side of the window sash 15. This prevents any possible manipulation by engaging the stop or head 22 for swinging to inoperative position.

It being necessary to have the windows in their entirely closed position before the stop device can be manipulated, prevents the possibility of anyone attempting to gain entrance through the windows from opening them a short way, and then by using wires or contrivances, throw or move the stop to inoperative position.

The head 22 projecting out into the path of the lower window sash 13 also serves as aweight for holding the lower end of the finger '23 in its innermost position and within the slot 18. When the parts are thrown in their inoperative position, the head or stop 22 1s received within the recess 24:, while the finger 23 is received in the upper half of the slot 18. Y The head 22 when the parts are in the position just mentioned, will continue to hold the upper end of the finger 23 within the slot 18 of the plate 17.

In Figures 5, 6, and 7 I have shown a slightly modified form of stop in which a plate 25 is secured to the upper window sash 15. The plate 25 may be counter sunk into the window sash; Hingedly secured to the plate 25 on a' vertical axis is a swinging member 26. The swinging member 26 is provided on its upper end with a protruding portion 27 The upper window sash is provided with a recess 28 which is designed to receive the portion 27 of the swinging member 26 when the parts are in position to permit the free opening of the windows relative to each other.

When the member 26 is in its open position the portion 27 is projected out into the path of travel of the windows and prevent their being entirely opened.

The swinging member projects in between the upper and lower sashes when they are partially opened and thus the swinging member cannot be manipulated until the windows are each in their entirely closed position.

It will be seen that my device is very simple and can practically be all made of stampings, thereby making the construction very cheap and yet eflicient.

In a good many cases, there is a sufficient amount of play between the upper and lower window sashes, so that the thin plate 17 may be placed against the inner surface of the upper window sash without the necessity of forming a recess in which it may bereceived. f

One of the advantages of my device resides in the fact that it is necessary to first have the windows in their entirely closed position, before the stop device may be operated either for moving itto operative position or to inoperative position.

Some changes may be made in the con,- struction and arrangement of the various parts of my device, without departing from the essential featuresand purposes of my invention, and it is my intention to cover by my claims, any modified forms of structure or use of mechanical equivalents, which may be reasonably included within their scope.

I claim as my invention: 1. In combination with a window frame and an upper and lower window sash slidably mounted relative to each other in said window frame, a stop device forlimiting the amount of movement of the window sashes, including a plate having an elongated slot therein, a finger pivoted to said plate intermediate of its ends and received in said slot, a projection formed on the end of the finger adjacent to its pivot, said finger being capable of being swung on its pivot to position where theprojection will be received in a recess formed in the'said upper window sash, said projection being so arranged that when in the recess it permits the free movement of the window sash, and

when not in the recess being interposed in the path of one of the window sashes for limiting its movement, the finger being received between the upper and lower sashes when they are in their partially opened position, thereby eliminatingthe possibility of 7 any one tampering with the finger from the outside for rendering the projection inoperative and thus entirely opening the window sashes.

2. In combination with a window frame and an upper and lower window sash slidably mounted relative to each other in said window frame, means for limiting the amount of movement of the window sashes relative'to each other, comprising a finger pivotally mounted on one of said window of the window sashes and when not in the sashes, a projection on said finger adjacent recess being interposed in the path of one of 10 to its pivot, said finger being capable of the'window sashes for limiting its movebeing swung on its pivot to position where ment, the finger being arranged to swing on 5 the projection will be received in a recess its pivot only when the window Sashes are formed in the sash having the finger thereon, in their closed position. said projection being arranged so that when Des Moines, Iowa, January 14, 1922. in the recess it permits the free movement LESLIE FRY. 

